Coin bank



FIG. 1 is a perspective view of a coin bank showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof from the left side;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof from the right side;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a coin bank, as shown. 